What causes water to remain in bottom of dishwasher?

One of the most common reasons for water at the bottom of your dishwasher is because food particles or other debris have clogged the drainage system. Check the dishwasher drain and clean the drain basket around the lower sprayer arm, unclogging debris with a wire hanger.

Try Vinegar and Baking Soda

Mix together about one cup each of baking soda and vinegar and pour the mixture into the standing water at the bottom of the dishwasher. Leave for about 20 minutes. If the water is draining or starting to drain at that time, rinse with hot water and then run the dishwasher’s rinse cycle.

Some water (standing water), usually one to two cups, remaining in the bottom of the dishwasher tub is normal. If dirty water is building up over time in the bottom of the dishwasher and your installation does not have an air gap, make sure you have a high drain loop.

Review the five signs that indicate a dishwasher clog.
You Hear Gurgling. Your Dishwasher Is Backing Up Water in Your Sink. You Notice Slow Draining In Your Dishwasher. You See Water Backup In the Dishwasher After the Cycle. Your Dishes Are Not Cleaned.

Standing water in the filter area

You’re likely noticing this water as you’re going to remove your dishwasher filters for regular cleaning. Water in this area is actually perfectly normal, useful even. It’s there to keep the seals from drying up.

One way to clean your dishwasher smelly hose is by placing a cup of mixture of distilled white vinegar and baking soda on the top rack for the first cycle. Let it sit for a while, then pour the boiling water in the basket. Run the rinse cycle.